102820200132 has 72 divisors (see below), whose sum is σ = 270090756544. Its totient is φ = 30261439296.

The previous prime is 102820200121. The next prime is 102820200149. The reversal of 102820200132 is 231002028201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102820200099 and 102820200108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 540448 + ... + 705495.

Almost surely, 2^102820200132 is an apocalyptic number.

102820200132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102820200132 is an abundant number, since it is smaller than the sum of its proper divisors (167270556412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102820200132 is a wasteful number, since it uses less digits than its factorization.

102820200132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246009 (or 1245984 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 102820200132 its reverse (231002028201), we get a palindrome (333822228333).

The spelling of 102820200132 in words is "one hundred two billion, eight hundred twenty million, two hundred thousand, one hundred thirty-two".